They are having such a good time that before he realizes it, it is time to go.

这时光是如此的美好以至于在这个参议员还没有意识到前就必须离开了。

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They are having such a good time that, before he realizes it, it is time to go.

他们度过了如此美好的一天，不知不觉，时间就到了。

youdao

They have a good time and, before he realizes it, the 24 hours have gone by and St.

他们也度过了美好的一天，不知不觉24小时到了。

youdao

Alterman says the president realizes that if he wants to get anything done in the Middle East, it will be a big help to have the Saudis on board.

VOA: standard.2009.06.02

It doesn't do any good at all,and he realizes that.

这样并没有什么好处,他意识到了

耶鲁公开课 - 1871年后的法国课程节选

GARCIA-NAVARRO: Still, Calderon cannot pass legislation in such an obstructed congress, and he realizes it.

NPR: Calderon's Swearing-In Marred by Violence

However he realizes it is still but a tiny contribution to relieving the amount of food products that go to waste.

CNN: Food waste a new opportunity for entrepreneurs

He hopes the government will one day stop promoting overseas workers and instead foster self-sufficiency, but he realizes it's easier said than done.

NPR: Filipino Families Divided by Distance, Economics